Revenge
Part of speech: verb
Definition: To take one's revenge (on or upon) someone. To take revenge for (a particular harmful action), to avenge. To take vengeance.
Part of speech: noun
Definition: Any form of personal retaliatory action against an individual, institution, or group for some perceived harm or injustice.
Example sentence: Revenge and retaliation always perpetuate the cycle of anger, fear and violence.
Vengeance
Part of speech: noun
Definition: Revenge taken for an insult, injury, or other wrong.